Non-contact visual measurement device
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United States of America Patent
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Nov 17, 2015
Grant Date -
Oct 23, 2014
app pub date -
Apr 23, 2014
filing date -
Apr 23, 2013
priority date (Note) -
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Abstract
A positional measuring device has a reference laser pointer and at least one measurement laser pointer. These laser pointers are positioned at a first end and a second end of a variable-length defining mechanism, a common example being a tape measure. The lasers are oriented in a direction which is perpendicular to the measurement axis of a user-specified length of the variable-length defining mechanism. The emission axis of each laser is thus parallel with each other. The lasers project onto a remote object. The laser pointers provide visual reference points that help a user ensure they are correctly measuring dimensions of an object. The distance between the laser pointers can easily be read via the variable-length defining mechanism. Because the lasers need to be parallel to each other and perpendicular to the user-specified length, a dual-axis liquid level is provided to ensure proper orientation of the positional measuring device.
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